Why do men not trust me?

I’m a attraxtive woman not in a vain way but I am very pretty but I always get called sexy rather than beautiful. My boobs are large so if I even cover up u see them and I don’t know if this has anything to do with it. But whenever I’m dating I get the same kinds of response saying that they don’t trust me. I’ve had a man ask me to be in a relationship officialy because he wanted to make sure that I was all his and not cheating as he didn’t trust me while we were dating and thought I’d speak to others. I don’t understand, I’m very lovely and I help out a lot and do things for people. And I have NEVER cheated. I always thought it was an excuse but when it happens every single time and I’ve heard similar things been said it’s weird, they will always keep me for sex but claim they don’t think I’d be very loyal.

Why do men not trust me?
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